Pronunciation: [ˈa͡ɪkuːdˌuː] (IPA)
Correct spelling for the English word "ICUHDU" is [ˈa͡ɪkuːdˌuː], [ˈaɪkuːdˌuː], [ˈaɪ_k_uː_d_ˌuː] (IPA phonetic alphabet).
Correct spelling for ICUHDU